By using the precipitation data of 34 years for statistic and to analyse the rainstorm areas from April to September in Anhui Province,the result shows that rainstorm of Anhui centralizes on June and July,and flood season rainfall as well as the trend of drought and waterlog depend basically on the amount and range of rainstorm.The rainstorm areas in flood season concentrate on the 500 hPa slope ranging from 582dagpm to 584 dagpm.Therefore,the prediction of rainfall belts can approximately refer to the movement of 584 dagpm isoline.In comparison of 20 rainstorms in Meiyu season of 2003 with some real physical variables,we get the conclusion that north side of west jet stream and from south side of 500hPa ascending center to the north side of 850 hPa ascending center are in favor of the occurrence and development of rainstorm.
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任敏,郝瑩,陳焱.暴雨落區(qū)的統(tǒng)計與分析研究.氣象科學,2007,(2):214-219 Ren Min, Hao Ying, Chen Yan. STATISTIC AND ANALYSIS OF RAINSTORM AREAS. Journal of the Meteorological Sciences,2007,(2):214-219